SH7265 Datasheet, PDF (1582/2024 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 29 AESOP
Figure 29.1 is a block diagram of the AESOP.
AESOP
interface
AESOP
DIN_RAM
DIN_RAM_0
32 × 1024
DIN_RAM_1
32 × 1024
DOUT_RAM
DOUT_RAM_0
32 × 1024
DOUT_RAM_1
32 × 1024
SFB_RAM
20 × 64
Figure 29.1 Block Diagram of AESOP
The following describes the block configuration.
• AESOP interface: Used for connecting to the host module
• DIN_RAM: Stores PCM data to be encoded with the AESOP. DIN_RAM has two planes, i.e.,
DIN_RAM_0 and DIN_RAM_1, each of which can hold 4-Kbyte data.
• DOUT_RAM: Stores AAC data that has been encoded with the AESOP. DOUT_RAM has
two planes, i.e., DOUT_RAM_0 and DOUT_RAM_1, each of which can hold 4-Kbyte data.
• SFB_RAM: Stores coefficients to be set in initial value settings for encoding
29.2 Input Format
The 16-bit PCM stereo data must be input to the AESOP in the big endian format as shown in
figure 29.2. If the format of data is not big endian, it should be converted using a bus bridge or
other means.
L-channel (16 bits)
Input format: Upper 8 bits Lower 8 bits
R-channel (16 bits)
Upper 8 bits Lower 8 bits
Figure 29.2 Input Format
Rev. 1.00 Mar. 14, 2008 Page 1546 of 1984
REJ09B0351-0100